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Latest Galaxies Stories

Milky Way Black Hole Ready For A Snack
2012-10-23 04:05:24

Lee Rannals for redOrbit.com - Your Universe Online Scientists have determined that the black hole in the middle of the Milky Way is getting ready to devour an approaching cloud of dust and gas. The researchers used a supercomputer simulation to determine that the cloud, known as G2, could possibly survive the encounter with the black hole, but its surviving mass would be torn apart and shaped differently. They came up with six simulations using Cosmos++ computer code, requiring more...

Early Universe Was Full Of Supermassive Black Holes
2012-10-08 12:41:21

Lee Rannals for redOrbit.com - Your Universe Online Scientists have discovered a new population of supermassive black holes in the early universe by using infrared surveys. After traveling 11 billion years, the light from supermassive black hole ULASJ1234+0907 reached Earth. This black hole has more than 10 billion times the mass of the Sun, and 10,000 times the mass of the supermassive black hole in our own Milky Way. The latest research, published in the journal Monthly Notices of...

X-Ray Nova Reveals A Black Hole Surprise
2012-10-05 15:40:26

[ Watch the Video: X-ray Nova Reveals a New Black Hole in Our Galaxy ] Lee Rannals for redOrbit.com - Your Universe Online A new stellar-mass black hole has been discovered in our galaxy by NASA's Swift satellite. High-energy X-rays emanating from a source towards the center of our Milky Way galaxy were observed, indicating the presence of a previously unknown black hole. "Bright X-ray novae are so rare that they're essentially once-a-mission events and this is the first one...

Star Discovery Tests Einstein
2012-10-04 20:58:20

Lee Rannals for redOrbit.com — Your Universe Online Astronomers, using the Keck Observatory, have found the star they need to test Einstein's theory about the fabric of space-time. UCLA astronomers said they have discovered a star that orbits the enormous black hole at the center of our Milky Way that will help discover whether Albert Einstein was right in his fundamental prediction of how black holes warp space and time. The star, S0-102, orbits the black hole every...

Messier 22 Has Two Black Holes
2012-10-03 12:49:09

Lee Rannals for redOrbit.com - Your Universe Online A surprising black hole discovery made while using the National Science Foundation's Karl G. Jansky Very Large Array (VLA) is causing scientists to change what they know of globular star clusters. Astronomers used VLA to study the globular cluster known as Messier 22, which is a tight-knit collection of hundreds of thousands of stars that lie 10,000 light-years away from Earth. The team had hoped to find evidence for a rare type of...

Merging Black Holes Could Reveal Their Flashy Secrets
2012-09-29 08:09:37

[ Watch the Video: Black Holes Crash, Merge in New Simulations ] April Flowers for redOrbit.com - Your Universe Online Einstein predicted gravitational waves almost 100 years ago. According to his theory, whenever massive objects interact, they produce distortions in the very fabric of space and time that ripple outward across the universe at the speed of light. Modern astronomers have found indirect evidence of these waves, but so far they have eluded direct detection. Greater...

Astronomers Describe Fireworks In The Early Universe
2012-09-27 19:28:13

Lee Rannals for redOrbit.com — Your Universe Online Astronomers suggest, in the Astrophysical Journal Letters, as galaxies formed in the early universe, they were accompanied by fireworks in the form of energy bursts. Active galaxies are easily detected due to their luminous radio, ultraviolet or X-ray radiation, which results from steady accretion onto their massive central black holes. Little has been known about the composition of these galaxies or their relationship to the...

Astronomers Measure Black Hole Radius
2012-09-27 19:16:53

Lee Rannals for redOrbit.com — Your Universe Online An international team of astronomers was able to measure the radius of a black hole for the first time. Researchers measured the radius of a black hole at the center of the galaxy M87, which lies about 50 million light-years away from the Milky Way. M87 has a black hole 6 billion times more massive than the Sun, and the team was able to observe the glow of matter near the edge of the black hole, or the "event horizon," using...

Planets Can Form In The Center Of Violent, Unstable Galaxies
2012-09-12 14:05:07

April Flowers for redOrbit.com - Your Universe Online Listen to the podcast “How Planets Form” with redOrbit's Dr. John Millis and planet-hunting expert Dr. Eric Mamajek of the University of Rochester. The center of the Milky Way seems like the last place to form a new planet, inhospitable and violent even. Stars crowd each other, whizzing through space like cars on a rush hour freeway while supernova explosions blast out shock waves and bathe the region in intense...


Latest Galaxies Reference Libraries

6_8304cd2002012eb0093845e374a1b9612
2004-10-19 04:45:42

Supermassive Black Hole -- A Supermassive black hole is a black hole with a mass in the range of millions or billions solar masses. A supermassive black hole has some interesting properties differing from his low-mass cousins: -- The average density of a supermassive black hole can be very low, and actually can be lower than water's density. This happens because the black hole diameter increases linearly with mass, and consequently density drops much faster. -- Strong tidal...

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Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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